VALQUA No. Cross Section Application
N510 p_semi_metal_li01 heat exchanger, valve bonnet pressure vessel tower, tank piper flange
N6510 p_semi_metal_li02
N520 p_semi_metal_li03 heat exchanger, valve bonnet pressure vessel tower, tank piper flange
N6520 p_semi_metal_li04
N530 p_semi_metal_li05 manhole/hand hole of boiler, steam trap, sight glass
N570 p_semi_metal_li06 manhole of boiler, steam trap, sight glass
N580 p_semi_metal_li07 heat exchanger, valve bonnet pressure vessel tower, tank piper flange
N6580 p_semi_metal_li08

Core Material and Temperature Limitation

Core Material Temperature Limitation °C(1)
Non-asbestos inorganic materials (800)(2)
VALQUAFOIL Tape 400(3)

Note : (1) Gasket temperature limit depending on the metal used in combination with the gasket. (2) For use at 800 °C and higher, consult Nippon Valqua. (3) In the case of sticking the tape to the surface of metal-jacketed gasket

Production Range

materials Min.ID Max. OD(1)
Low Carbon Steel 12 1,200
copper 10 980
SUS304 15 1,200
SUS304L
SUS316
SUS316L
SUS321
SUS347 980
SUS410
5Cr-0.5Mo Steel 1,200
Brass 980
Aluminum bronze
Monel metal 580
Titanium 980
Nickel 580
Aluminum 12 980
Lead 15 1,440

 

 

VALQUA No. Application Cross Section
500 Gasket for valve bonnet  p_metal_li01
540 Gasket for pressure vessel, tower, vessel, valve bonnet, piping flange, etc. p_metal_li02
6540H Gasket for heat exchanger, vessel, tower, vessel, etc. p_metal_li03
6540L Gasket for pressure vessel, tower, vessel, valve bonnet, piping flange, etc. p_metal_li04
560 Gasket for heat exchanger, autoclave, valve bonnet, piping flange, etc. p_metal_li05
550 Gasket for piping flange, pressure vessel, valve bonnet, etc. p_metal_li06

Note (1)        Manufacturing rage without welding Remarks:      Minimum gasket width 5 mm